[解析]
(1)推理判断题。根据第一段Today's grandparents are joining their grandchildren on social media,but the different generations' online habits couldn't be more different.In the UK the over﹣5 5 s are joining Facebook in increasing numbers,meaning that they will soon be the site's second biggest user group,with 3.5 million users aged 55﹣64 and 2.9 million over﹣65s.(如今,祖父母和孙辈都在使用社交媒体,但不同代人的上网习惯却截然不同。在英国,55岁以上的用户越来越多,这意味着他们很快将成为该网站的第二大用户群体,55﹣64岁的用户有350万,65岁以上的用户有290万)可知,越来越多的老年人开始使用社交媒体。故选C。
(2)观点态度题。根据第二段Sheila,aged 59,says, "I joined to see what my grandchildren are doing,as my daughter posts videos and photos of them.It's a much better way to see what they're doing than waiting for letters and photos in the post.That's how we did it when I was a child,but I think I'm lucky I get to see so much more of their lives than my grandparents did."(59岁的希拉说:"我加入是为了看看我的孙子们在做什么,因为我的女儿上传了他们的视频和照片。这是一种比等待信件和照片更好的方式来了解他们在做什么。当我还是个孩子的时候,我们就是这样做的,但我觉得我很幸运,我能比我的祖父母看到更多他们的生活。")可推知,希拉对社交媒体感到满意。A.Worried.担心的;B.Satisfied.满意的;C.Excited.兴奋的;D.Disappointed.失望的。故选B。
(3)推理判断题。根据倒数第二段Sheila,on the other hand,has made contact with old friends from school she hasn't heard from in forty years. "We use Facebook to arrange to meet all over the country," she says. "It's changed my social life completely."(另一方面,希拉和学校里的老朋友取得了联系,她已经40年没有联系了。她说:"我们用Facebook在全国各地安排见面。这完全改变了我的社交生活。")可推知,社交媒体实际上帮助老年人和他们的朋友见面。故选D。
(4)标题归纳题。根据第一段中Today's grandparents are joining their grandchildren on social media,but the different generations' online habits couldn't be more different.(如今,祖父母和孙辈都在使用社交媒体,但不同代人的上网习惯却截然不同)结合文章通过举例说明了老年人和他们的孙辈使用社交媒体的不同习惯,以及对社交媒体的看法。可知,A.Different Online Habits Across Generations."几代人的上网习惯不同"最符合文章标题。故选A。